High-power welding machine

Abstract

The utility model relates to a high-power welding machine. The utility model relates to a high-power welding machine which comprises a machine frame. The welding assembly is arranged on the rack and comprises a driving cylinder, an upper electrode and a lower electrode, and the driving cylinder drives the upper electrode to be close to or away from the lower electrode; the anodes of the transformer and the inversion controller are electrically connected with the anode copper plate respectively, and the cathodes of the transformer and the inversion controller are electrically connected with the cathode copper plate respectively; the plurality of transformers are arranged on one side of the copper plate in parallel along the extension direction of the copper plate, so that the distances between the anodes of the transformers and the anode copper plate are equal, and the distances between the cathodes of the transformers and the cathode copper plate are equal; and the plurality of inverter controllers are arranged on one side of the copper plate in parallel along the extension direction of the copper plate, so that the distances between the anodes of the inverter controllers and the anode copper plate are equal, and the distances between the cathodes of the inverter controllers and the cathode copper plate are equal. The high-power welding machine has the advantages of being stable in welding and long in service life.

Description

Technical Field

[0001] The utility model relates to the field of welding, in particular to a high-power welding machine. Background Art

[0002] Existing high-power resistance welding equipment usually includes a pair of upper and lower electrodes arranged opposite to each other, wherein the upper electrode can be raised and lowered to move closer to or away from the lower electrode to achieve rapid welding of the workpiece to be welded. Figure 1-2 , Figure 1 It is a structural diagram of existing resistance welding equipment; Figure 2 This is an electrical connection diagram for conventional resistance welding equipment. In conventional resistance welding equipment, a transformer box a2 is typically located to one side of the main welding frame a1, while an electrical cabinet a3 is independently installed. Transformer box a2 houses a transformer positive copper plate a4, a transformer negative copper plate a5, and multiple transformers a6. Each transformer a6 is connected in parallel to the positive and negative copper plates a4 and a5, and stacked vertically. Electrical cabinet a3 houses a parallel positive and negative copper plates a7 and a8, as well as multiple controllers a9. These controllers a9 are arranged along the extension of the positive and negative copper plates a7 and a8, and connected in parallel with them. A bridge a10 is installed between transformer box a2 and electrical cabinet a3. Wires run through bridge a10, connecting the end of the transformer's positive copper plate a4 to the cabinet's positive copper plate a7, and the end of the transformer's negative copper plate a5 to the cabinet's negative copper plate a8. However, this structure has high equipment and maintenance costs, poor welding stability, and a short service life, failing to meet market demand. Utility Model Content

[0003] Based on this, the purpose of the present invention is to provide a high-power welding machine, which has the advantages of stable welding and long service life.

[0004] A high-power welding machine, comprising:

[0005] frame;

[0006] A welding assembly is provided on the frame and includes a driving cylinder, an upper electrode and a lower electrode, wherein the driving cylinder drives the upper electrode to move closer to or away from the lower electrode;

[0007] An electrical component is arranged on the frame, including a copper plate, a transformer and an inverter controller, the copper plate including a positive copper plate and a negative copper plate, the positive poles of the transformer and the inverter controller are electrically connected to the positive copper plate, respectively, and the negative poles are electrically connected to the negative copper plate, respectively; the positive copper plate and the negative copper plate are arranged in parallel and at intervals, there are multiple transformers and they are arranged in parallel on one side of the copper plate along the extension direction of the copper plate, so that the positive pole of each transformer is at an equal distance from the positive copper plate, and the negative pole is at an equal distance from the negative copper plate; there are multiple inverter controllers and they are arranged in parallel on one side of the copper plate along the extension direction of the copper plate, so that the positive pole of each inverter controller is at an equal distance from the positive copper plate, and the negative pole is at an equal distance from the negative copper plate.

[0008] The high-power welding machine described in the utility model replans and designs the layout of the lines between the transformer and the inverter controller so that the lengths of the lines between the transformer and the inverter controller are consistent, thereby improving the welding stability and service life of the welding machine and greatly reducing the cost of the welding machine.

[0009] Furthermore, the positive and negative copper plates are arranged horizontally, the transformers are arranged horizontally in parallel to form a transformer array, and the inverter controllers are arranged horizontally in parallel to form an inverter controller array. This structure avoids the maintenance difficulties caused by stacking transformers in traditional welding machines, reducing maintenance costs.

[0010] Furthermore, the central axis of the inverter controller array is aligned vertically with the central axis of the positive copper plate, the central axis of the negative copper plate, and the central axis of the transformer array. This structure ensures consistent wiring between the transformer and the inverter controller, ensuring welding stability.

[0011] Furthermore, the frame has a gantry structure, comprising two sets of support frames, a main housing disposed between the two sets of support frames, and first and second mounting boxes disposed on either side. The main housing defines a working chamber for accommodating welding components, and the two sets of electrical components are disposed in the first and second mounting boxes, respectively. This compact frame structure reduces equipment costs.

[0012] Furthermore, it also includes weak current components and strong current components, wherein the weak current components are arranged in the first installation box and the strong current components are arranged in the second installation box. This structure partitions the weak current and strong current to avoid interference.

[0013] Furthermore, the weak-current assembly includes a weak-current unit and a weak-current unit mounting plate, the weak-current unit mounting plate being mounted in the first mounting box and located above the electrical assembly, and the weak-current unit being mounted on the weak-current unit mounting plate; the strong-current assembly includes a strong-current unit and a strong-current unit mounting plate, the strong-current unit mounting plate being mounted in the second mounting box and located above the electrical assembly, and the strong-current unit being mounted on the strong-current unit mounting plate. This structure facilitates the installation of weak and strong current components while avoiding interference.

[0014] Furthermore, the electrical components comprise at least two groups, symmetrically distributed on either side of the axis of the upper and lower electrodes. The welding assembly also includes a soft copper strip, an upper copper busbar, and a lower copper busbar. The upper electrode is electrically connected to the positive terminal of the transformer via the soft copper strip and the upper copper busbar, respectively, while the lower electrode is electrically connected to the negative terminal of the transformer via the lower copper busbar. This structure ensures a stable connection between the welding electrodes and the transformer, with equal distances between them, ensuring a stable welding circuit.

[0015] Furthermore, the welding assembly also includes an upper electrode tile and a lower electrode tile. The upper electrode tile is provided with the upper electrode. The transformer is electrically connected to the upper electrode tile to connect the upper electrode to the positive electrode. The lower electrode tile is provided with the lower electrode. The transformer is electrically connected to the lower electrode tile to connect the lower electrode to the negative electrode. This structure supports and secures the electrodes, ensuring a stable connection in the welding circuit.

[0016] Furthermore, each group of the electrical components includes five of the transformers and two of the inverter controllers, thereby ensuring stable welding supply voltage.

[0017] Furthermore, the driving cylinder is a pneumatic cylinder or a hydraulic cylinder. This structure can achieve rapid movement of the upper electrode and improve welding efficiency.

[0018] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of existing resistance welding equipment;

[0020] Figure 2 An electrical connection diagram for existing resistance welding equipment;

[0021] Figure 3 This is a front view of the welding machine of the present invention;

[0022] Figure 4 This is a structural diagram of the frame of the utility model;

[0023] Figure 5 It is a side view of the welding machine of the present invention;

[0024] Figure 6 This is the electrical connection diagram of the welding machine described in the present invention;

[0025] Explanation of the accompanying drawings: a1, main welding frame; a2, transformer box; a3, electric cabinet; a4, transformer positive copper plate; a5, transformer negative copper plate; a6, transformer; a7, electric cabinet positive copper plate; a8, electric cabinet negative copper plate; a9, controller; a10, bridge; 1, frame; 11, support frame; 12, upper crossbeam; 13, lower crossbeam; 14, first installation box; 15, second installation box; 16, working chamber; 21, drive cylinder; 22, upper electrode tile; 23, lower electrode tile; 31, transformer; 32, positive copper plate; 33, negative copper plate; 34, upper copper busbar; 35, soft copper strip; 36, lower copper busbar; 37, inverter controller; 41, weak current unit mounting plate; 51, strong current unit mounting plate. DETAILED DESCRIPTION

[0026] Analysis reveals that conventional resistance welders suffer from poor welding stability due to inconsistent wiring lengths between the transformer and controller, which in turn causes variations in the load on each transformer, leading to reduced welding stability and service life. This application addresses this issue by improving the connection between the transformer and inverter controller. By redesigning the wiring layout, the wiring between the transformer and controller is made uniform in length. This not only improves the welding stability and service life of the welder, but also resolves the inconvenience of transformer assembly and disassembly, significantly reducing the cost of the welder.

[0027] See also Figure 3-6 , Figure 3 This is a front view of the welding machine of the present invention; Figure 4 This is a structural diagram of the frame of the utility model; Figure 5 It is a side view of the welding machine of the present invention; Figure 6 This is the electrical connection diagram of the welding machine described in this utility model.

[0028] The utility model discloses a high-power welding machine, comprising a frame 1, and welding components and electrical components arranged on the frame 1. The high power refers to an output current of more than 100KA.

[0029] The frame 1 comprises two sets of support frames 11, a main housing disposed between the two sets of support frames 11, and a first installation box 14 and a second installation box 15 disposed on the left and right sides, respectively, forming a gantry structure, thereby improving the structural compactness of the frame 1. A working chamber 16 for accommodating welding components is defined within the main housing. The main housing includes an upper crossbeam 12 and a lower crossbeam 13, with the working chamber 16 located between the upper and lower crossbeams 12, 13.

[0030] The welding assembly includes a drive cylinder 21, an upper electrode tile 22 and a lower electrode tile 23. The drive cylinder 21 is an air cylinder, a hydraulic cylinder or a servo electric cylinder. The drive cylinder 21 is installed on the top of the upper beam 12, and its output end is inserted into the working chamber 16, and drives the upper electrode tile 22 to move up and down, so that the upper electrode tile 22 is close to or away from the lower electrode tile 23. The lower electrode tile 23 is arranged opposite to the upper electrode tile 22 and fixed in the working chamber 16. In this embodiment, it is fixed on the lower beam 13. The upper electrode tile 22 and the lower electrode tile 23 are respectively provided with relative upper and lower electrodes. When in use, the part to be welded is placed on the lower electrode tile 23 and abuts against the lower electrode. When the upper electrode tile 22 drives the upper electrode to move toward the part to be welded and squeezes the part to be welded, the upper electrode and the lower electrode are connected to form a welding circuit, and the part to be welded is welded.

[0031] There are at least two groups of electrical components, including a transformer 31, a positive copper plate 32, a negative copper plate 33, an upper copper busbar 34, a soft copper strip 35, a lower copper busbar 36, and an inverter controller 37. In this embodiment, there are two groups of electrical components and they are installed in the first installation box 14 and the second installation box 15, respectively. The two groups of electrical components are symmetrically distributed on both sides of the axis of the upper electrode and the lower electrode. There are multiple transformers 31, and their positive and negative poles are connected to the positive copper plate 32 and the negative copper plate 33 respectively via cables. The upper electrode tile 22 is connected to the positive pole of the transformer 31 in turn via the soft copper strip 35 and the upper copper busbar 34, and the lower electrode tile 23 is connected to the negative pole of the transformer 31 via the lower copper busbar 36, forming a secondary circuit. The positive and negative poles of the inverter controller 37 are connected to the positive copper plate 32 and the negative copper plate 33 respectively via cables, forming a primary circuit.

[0032] To ensure consistent lengths of the connecting wires, the positive copper plate 32 and the negative copper plate 33 are horizontally arranged in parallel within the first and second mounting boxes 14, 15, and are positioned above the transformers 31. The transformers 31 are arranged horizontally side by side to form an array of transformers 31, avoiding stacking. This ensures that the distance between the positive electrode of each transformer 31 and the positive copper plate 32, and the distance between the negative electrode and the negative copper plate 33, is equal. This facilitates assembly and disassembly of the transformers 31 while maintaining consistent lengths of the connecting wires.

[0033] The inverter controllers 37 are arranged horizontally in parallel to form an array of inverter controllers 37, such that the positive pole of each inverter controller 37 is equidistant from the positive copper plate 32, and the negative pole is equidistant from the negative copper plate 33. The central axis of the array of inverter controllers 37 is aligned with the central axis of the positive copper plate 32, the central axis of the negative copper plate 33, and the central axis of the array of transformers 31, thereby ensuring that the length of the wiring between the transformers 31 and the inverter controllers 37 is consistent.

[0034] The high-power welding machine also includes a weak current component and a strong current component, which are arranged separately from the strong current component to avoid interference with each other. In this embodiment, the weak current component is arranged in the first installation box 14, and the strong current component is arranged in the second installation box 15. The weak current component includes a weak current unit and a weak current unit mounting plate 41, and the weak current unit mounting plate 41 is set in the first installation box 14 and located above the electrical component, and the weak current unit is set on the weak current unit mounting plate 41. The strong current component includes a strong current unit and a strong current unit mounting plate 51, and the strong current unit mounting plate 51 is set in the second installation box 15 and located above the electrical component, and the strong current unit is set on the strong current unit mounting plate 51.

[0035] During welding discharge, all transformers 31 on the left and right sides discharge at the same time. The current passes through the positive pole of the transformer 31, the upper copper busbar 34, the soft copper strip 35, the upper electrode tile 22, the upper electrode, the workpiece to be welded, the lower electrode, the lower electrode tile 23, the lower copper busbar 36, and finally flows back from the negative pole of the transformer 31 to form a welding circuit.

[0036] The high-power welding machine described in this utility model redesigns the wiring layout between the transformer and the inverter controller. Two sets of electrical components are symmetrically arranged on either side of the electrode, and the current is fed into the central electrode for welding. This ensures that the wiring between the transformer and the inverter controller is of uniform length, allowing each transformer to share the load more evenly, thereby improving the welding stability and service life of the welder. This structure also shortens the welding circuit length, reduces the use of steel and copper materials, and significantly reduces the cost of the welder. Furthermore, this structure solves the problem of inconvenient transformer assembly and disassembly, further reducing the maintenance cost of the welder.

[0037] In the description of this application, it should be understood that if the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0038] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0039] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0040] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous modifications and improvements without departing from the concept of the present invention, and the present invention is intended to encompass such modifications and variations.

Claims

1. A high-power welding machine, characterized in that: include: frame; A welding assembly is provided on the frame and includes a driving cylinder, an upper electrode and a lower electrode, wherein the driving cylinder drives the upper electrode to move closer to or away from the lower electrode; An electrical component is arranged on the frame, including a copper plate, a transformer and an inverter controller, the copper plate including a positive copper plate and a negative copper plate, the positive poles of the transformer and the inverter controller are electrically connected to the positive copper plate, respectively, and the negative poles are electrically connected to the negative copper plate, respectively; the positive copper plate and the negative copper plate are arranged in parallel and at intervals, there are multiple transformers and they are arranged in parallel on one side of the copper plate along the extension direction of the copper plate, so that the positive pole of each transformer is at an equal distance from the positive copper plate, and the negative pole is at an equal distance from the negative copper plate; there are multiple inverter controllers and they are arranged in parallel on one side of the copper plate along the extension direction of the copper plate, so that the positive pole of each inverter controller is at an equal distance from the positive copper plate, and the negative pole is at an equal distance from the negative copper plate.

2. A high-power welding machine according to claim 1, characterized in that: The positive copper plate and the negative copper plate are arranged horizontally, the transformers are arranged in parallel in the horizontal direction to form a transformer array, and the inverter controllers are arranged in parallel in the horizontal direction to form an inverter controller array.

3. A high-power welding machine according to claim 2, characterized in that: The central axis of the inverter controller array is located on the same vertical line as the central axis of the positive copper plate, the central axis of the negative copper plate, and the central axis of the transformer array.

4. A high-power welding machine according to claim 1, characterized in that: The frame is a gantry structure, including two groups of support frames, a main box body arranged between the two groups of support frames, and a first installation box and a second installation box respectively arranged on both sides. A working chamber for accommodating welding components is opened in the main box body, and there are at least two groups of electrical components, which are respectively arranged in the first installation box and the second installation box.

5. A high-power welding machine according to claim 4, characterized in that: It also includes a weak current component and a strong current component. The weak current component is arranged in the first installation box, and the strong current component is arranged in the second installation box.

6. A high-power welding machine according to claim 5, characterized in that: The weak-current component includes a weak-current unit and a weak-current unit mounting plate, the weak-current unit mounting plate is mounted in the first mounting box and located above the electrical component, and the weak-current unit is arranged on the weak-current unit mounting plate; the strong-current component includes a strong-current unit and a strong-current unit mounting plate, the strong-current unit mounting plate is mounted in the second mounting box and located above the electrical component, and the strong-current unit is arranged on the strong-current unit mounting plate.

7. A high-power welding machine according to claim 1, characterized in that: There are at least two groups of electrical components and they are symmetrically distributed on both sides of the axis where the upper electrode and the lower electrode are located. The welding assembly also includes a soft copper strip, an upper copper bar and a lower copper bar. The upper electrode is electrically connected to the positive pole of the transformer through the soft copper strip and the upper copper bar in sequence, and the lower electrode is electrically connected to the negative pole of the transformer through the lower copper bar.

8. A high-power welding machine according to claim 7, characterized in that: The welding assembly also includes an upper electrode tile and a lower electrode tile. The upper electrode tile is provided with the upper electrode, and the transformer is electrically connected to the upper electrode tile to connect the upper electrode to the positive electrode. The lower electrode tile is provided with the lower electrode, and the transformer is electrically connected to the lower electrode tile to connect the lower electrode to the negative electrode.

9. A high-power welding machine according to claim 1, characterized in that: Each group of the electrical components includes a plurality of the transformers and a plurality of the inverter controllers.

10. A high-power welding machine according to claim 1, characterized in that: The driving cylinder is a pneumatic cylinder, a hydraulic cylinder or a servo electric cylinder.

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